Example:
Say we want to replace the mesh of the left foot and have it color textured, and appear in the ghost
we add this in the item.dat
OBJ20 1; 1 1 255 1 0 1 1

in the custom folder, add an OBJ mesh named l_foot.obj
and add a texture matching the UV map of the mesh named l_foot_obj.tga

For my hat I used the code OBJ0 1; 1 0 255 1 0 0 0
If your item won't display at this point you have done something wrong

Okay so i have a .tga file with the tetures inside it for my hat. I have my hat exported as a .obj file named head.obj (tga is named head_obj.tga)
I have them both in a custom folder called "0test0" yet the textures wont load.
This is my item.dat area in which i have edited it for the head.